Shuttle-check for looms.



'PATENTED JAN. 22, 1907.

W. B. HARRIS. SHUTTLE CHECK FOR LOOMS.

1 m mam M APPLICATION FILED 0CT.18.1906.

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WARREN B. HARRIS, OFMILLBURY, MASSACHUSETTS. SHUTTLE-CHECK FOR .LOOIVIS.

Specification of Letters Patent.

Patented Jan. 22, 1907.

Application filed October 18, 1906. Serial No- 339,436.

To all whom it may concern.-

Be it known that I, WARREN B. HARRIS, a citizen of the United States,residing at Millbury, in the county of WVorcester and State ofMassachusetts, have invented a new and usean inclined solidly-stationaryab utment member at or upon the end of the lathe or shuttleboX andcoacting with a yieldable member and a peculiarly-disposedresistance-spring, thereby relieving the spring and mechanism fromshocks and strains that might otherwise tend to break, set, or injurethe spring. These objects I attain by the mechanism illustrated in theaccompanying drawings, wherein- Figure 1 represents a rear elevationView of my improved shuttlecheck together with such parts of a loom aswill show the manner of its combination therewith. Fig. 2 represents aplan view of the same; and Fig. 3 represents a sectional view of thecheck device,

showing certain modifications.

Referring to the parts on the drawings, the letter A denotes theshuttle-box head-frame or guide-casting at the end of the lathe orbatten of a loom, and a indicates the evener or guard-flange employed.with drop-boxes for keeping the shuttles even and made integral' withthe guide-casting, but omitted in single-box looms. B indicates theshuttle box or boxes supported on or guided by the head-casting, Cindicates the picker-guiding rod, D the picker sliding on said rod forthrowing the shuttle F from the shuttle-box. Said parts represent theusually-employed elements and may be of a loom made for operating inwell-known or any suitable manner, and being, together with the meansfor the operation thereof, well understood further illustration anddescription thereof herein is not necessary except in their specialrelation to the means which embodiesmy invention.

In accordance with my invention I provide a check-body member 2, whichconsists of a block or abutment secured in stationary position upon thepart of the lathe by screws or otherwise adjacently beyond the end ofthe shuttle-box and having an inclined bearingsurface 5 disposed obliqueto the axis of the shuttle-box or direction in which the shuttle moves.Combined therewith I arrange a movable block or contact member 3 ,havingan inclined seating-surface countermatching with and slidably supportedupon the inclined surface 5 of the body member 2. The slide block ormember 3 is also provided with a contactdace 6, approximatelyperpendicular to the line of the shuttle movement and disposed at aposition in line with the shuttlepoint and adapted to receive the impactcontact of the moving shuttle and picker-head when the latter is forcedbackby the incoming shuttle entering the shuttle-box in the directionindicated by the arrows.

A spring-holding means, as bolt 7 is arranged through a hole in thebody-block 2 and through alongitudinal slot 8 in the slideblock 3. Saidbolt is disposed approximately perpendicular to the line of shuttlemovement and is provided with a head 9 at one end and with an adjustingnut or nuts 10 at its other end. Seating-washers 12 and 13 arepreferably arranged loose upon the bolt 7, adjacent to the top of thecontact-block 2 and against the nut 10. An expandingcoiled-wire spring15 is arranged about the bolt in such manner that the tension of thespring tends to force the contact block or member 3 down the inclinedsurface 5 on the body member 2 and toward its forward or primalposition, as shown in Fig. 1. The bolt 7 may be disposed with the springabove the contactblock, as shown in Fig. 1, or beneath the body-block,as shown in Fig. 3, as the action and effect are substantially the samein either form. The tension of the spring can be regulated by means ofthe nut 10. The contact-face of the slide-block can be made with acushion-facing 16, of leather or other non-metallic material, asindicated IIO moves up the incline 5, compressing the spring v15, andthe momentum of the shuttle is yieldingly checked by the resistanceoiiered by the stationary abutment member and the retreatablecontact-block seated against the inclined surface 5 and moving thereonopposed by the transverselyapplied pressure of the spring 15. Aconsiderable proportion of the impact force is exhausted against thefixed body-block 2 without rigidity, and the spring 15 is not subjectedto severe shocks that would tend to set, fracture, or quickly destroythe spring. Furthermore, the combination is such that a spring of amplelength in proportion to its extent of compression can be convenientlyemployed Without inter fering with other parts of the mechanism, thusaffording a check device that is very efficient, durable, and smoothlyoperative.

I claim and desire to secure by Letters Patent 1. A shuttle-checkmechanism, comprising a stationary member havin a bearing-surface theplane of which is oblique in relation to the line of the shuttlemovement, a contact-receiving member having an inclined seating-facesupported and slidable upon said bearing-surface, a spring-holdingmeans, and a spring pressing said contact member toward said inclinedbearing-surface in a direction approximately perpendicular to the lineof shuttle movement.

2. A shuttle-check for looms, comprising a stationary body block ormember having an inclined bearing-surface, a longitudinallyslottedslide-block having a contact-face and an inclined seating-face slidablysupported upon the inclined bearing-surface of said body member, aprojecting spring-guiding bolt arranged transversely through saidblocks, and a spring disposed for pressing upon said slide-block in adirection oblique to the plane of said bearing-surface.

3. The combination with the lathe, shuttlebox, and picker, in a loom ofa checl clined bearing-surface oblique to the axis of the shuttle-box, amovable contact member having a perpendicular contact-face and anbearing-surface of said check-body, a bolt passing through said body andcontact member approximately perpendicular to the line of shuttle-boxaxis, a coil-spring arranged on said bolt and exerting pressure to impelsaid contact member toward its primal position, and means for regulatingthe tension of said spring.

WVitness my hand this 15th day of October, 1906.-

' WARREN B. HARRIS. Vitnesses:

CHAs. H. BURLEIGH. Gno. H. PARK.

inclined seating-face supported upon the a body fixed on the lathe andhaving an in-

